let's develop more stars in education. let's invest in our teachers... ...so they can inspire our students. let's solve this. s. >>> new york's mayor cory booker taking the food stamp challenge tomorrow. the man who is known for among other things shoveling snow out of constituents driveways and rescuing the homeless during flooding will start living on the monetary equivalent of a person on food stamps for a week. in new jersey that works out to about $133 a month or about $1.40 a meal. booker is the latest politician to stand in solidarity with welfare families. let's meet another man who tried the same thing, phoenix mayor. what was it like to live on just $4 a day for meals? >> well, in phoenix the food stamp amount is $29 per week. and to live off of that and still try to live a healthy lifestyle with healthy meals is incredibly difficult. i had to skip a bunch of meals. ate a lot of ramin and beans and rice and lost a few pounds. it was tough. >> a record 47 million americans use food stamps in august. that cost near